Step Into

Select the Step Into command [ ] to step into the next method call at the currently executing line of code.

To step into a method have execution suspended and be stepping through code.

Debugger
Local debugging
Remote debugging

Changing debugger launch options
Connecting to a remote VM with the Remote Java application launch configuration
Disconnecting from a VM
Launching a Java program
Preparing to debug
Resuming the execution of suspended threads
Running and debugging
Stepping through the execution of a program
Suspending threads

Debug View
Debug preferences
Execution Control Commands
Run Menu
Step Return
Step Over